74021-62-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74021-62-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,0,2 and 1 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74021-62:
(7*7)+(6*4)+(5*0)+(4*2)+(3*1)+(2*6)+(1*2)=98
98 % 10 = 8
So 74021-62-8 is a valid CAS Registry Number.